I installed Vivian's Looney, and IDP's Street tune on my 06. After the installation of both of these tunes the transmission will not shift right under WOT. If you're just driving normally it will shift fine. I tried letting the transmission "learn" but I have not had any luck. I was wondering if you guys had any ideas. Thanks.

I reloaded the tune, then did the learning curve for the transmission. It shifted great after that. But now I have killed the pickup, and when I get back in it won't hardly shift and keeps a constant 25psi of boost. Any ideas??

It took me a few rounds with IDP to get it to shift right. I did similar 'relearn' procedures in between.

When I uploaded Matt's SRL, it shifted fine the first load.

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This. Except with TSD's SPD but from my understanding Gearhead/TSD are very comparable. Then I was really surprised by that tune's shifting, in a good way Seems, imo, ID focused on making tunes for the 6.4 crowd and built 6.0liters that went down the track or pulled a sled, and the basic stage 1 6.0L tunes got tinkered with here and there but never really caught up. Jmo that will probably piss some people off but I'm sure some will agree.

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